The character is composed of 言 (speak; 7 strokes) in the middle flanked by 幺 (tiny; 2×3 strokes) on both sides. Below it, 馬 (horse; 10 strokes) is similarly flanked by 長 (grow; 2×8 strokes). This central block itself is surrounded by 月 (moon; 4 strokes) to the left, 心 (heart; 4 strokes) below, 刂 (knife; 2 strokes) on the right, and 八 (eight; 2 strokes) above. These in turn are surrounded by a second layer of characters, namely 宀 (roof; 3 strokes) on the top and 辶 (walk; 4 strokes) curving around the left and bottom.

The origins of the biang biang noodles and the character biáng are unclear. In one version of the story, the character biáng was invented by the Qin Dynasty Premier Li Si. However, since the character is not found in the Kangxi Dictionary, it may have been created much later than the time of Li Si. Similar characters were found used by Tiandihui.

In the 2007 season of the TVB show The Web (Chinese: 一網打盡), the show's producers tried to find the origin of the character by contacting university professors, but they could not verify the Li Si story or the origin of the character. It was concluded that the character was invented by the noodle store[clarification needed].

One theory is that there was no such character or meaning for this word in the beginning, and the word actually came from the sound people make from chewing such delicious noodles, "biang biang biang".

According to an article on China Daily, the word "biang" actually refers to the sound made by the chef when he creates the noodles by pulling the dough and slapping it on the table.[2]